Combined thrasher and separator



(N0 Madel.) 3 Sheets-Sheet 1.

J. DAVIS.

COMBINED THRASHER AND SEPARATOR. No. 308.065. Patented Nov. 18, 1884.

I/ t e v INVENTOR 'yawzesza a'w ATTORN EYS (No Model.) 3 Sheets-Sheet 2.

J. DAVIS.

GOMBIN-BD THRASHER AND SEPARATOR. No. 308,065. Patented Nov. 18, 1884.

i INVENTOR JZZWZGSJzkY ATTORNEYS (No Model.) 3 Sheets$heet 3.

J. DAVIS.

COMBINED THRASHER AND SEPARATOR.

No. 308,065. Patented Nov. 18, 1884.

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ilmrno SrA rrs JAMES DAVIS, OF QUAKER SPRINGS, NEWV YORK.

COMBINED THRASHER AND SEPARATO R.

SPECIFICATION forming part of Letters Patent No. 308,065, dated November18, 1884.

Application filed June 20, 1884. (No model.)

To all whom it may concern.-

Be it known that I, J AMns DAVIS, a citizen of the United States,residing at Quaker Springs, in the county of Saratoga and State of NewYork, have invented certain new and useful Improvements in CombinedThrasher and Separator; and I do hereby declare that the following is afull, clear, and eXact description of the same, reference being had tothe annexed drawings, making a part of this specification, and to theletters and figures of reference marked thereon.

Figure 1 of the drawings is a perspective View of my improved thrasherand separator with the frame partly broken away to show the interiorconstruction thereof. Fig. 2 is a longitudinal central section inperspective. Fig. 3 is a transverse section taken on line as a; of Fig.1, and Fig. 4 a detail view in perspective of the ribbed receiving-rack.

The present invention has relation to combined thrashers and separators,and the object thereof is to effect a more perfect separation of thestraw and grain at the cylinder, and to thoroughly clean the grain fromany foreign substances and impurities; and the invention consists in thegeneral construction of the machine, substantially as shown in thedrawings, and hereinafter described and claimed.

In the accompanying drawings, A represents the frame of the machine,provided at its feeding end with a thrashing-cylinder, B, having uponits periphery zigzag ribs a.

In the rear of the cylinder B, and ona plane below it, is located theconcave 0, provided with a feed-chute, D, upon which the straw is placedin feeding it to the thrashing-cylinder,

said feed-chute having guides I) at its sides to more readily effect thepassage of the straw between the rack and cylinder. The concave O has acentral rib, c, and at each side thereof two or more ribs, (1, the upperedge of the ribs being on the same horizontal plane with the feed-chuteD at the point where they join it, and their forward or outer endslocated under the thrashing-cylinder B. The ribs d for a portion oftheir length are bent at an acute angle in a direction toward thecentral rib, c,

so as to converge from the receiving-edge toward the middle of theconcave, and thence 1n an outward direction, so as to diverge from themiddle to the rear edge, and the rib c at its outer end terminates in abifurcation, the branches thereof having the same angle as the angularouter ends of the ribs (2. These several ribs constructed and arrangedas above described, and shown in Fig. 4, form together channels for thestraw and grain, which, in connection with the zigzag ribs or. on theperiphery of the roller or cylinder B, act more effectively upon thestraw as it passes between them to separate the grain therefrom, whilethe peculiar angle of the channels formed by the ribs tends to guide thestraw and grain toward the center of the machine, and thence outward atan angle to conformwith the zigzag ribs on the cylinder. The concave Cat its forward end is provided with. a series of parallel rods, 6, whichtogether form an upwardly-inclined grating to receive the straw andgrain from the thrashing-cylinder and deliver it to the endless carriersEF, from whence it passes to a rotary heater or picker, G, of the usualconstruction, the straw passing in its course onto the forward carrier,H, in front of which is located adelivery-reel, I, to insure a perfectdischarge of the straw and prevent any clogging or back action. Belowthe carrier H is located the vibratory shoe K of any of the usual forms,and also a blast-fan, L, is employed for cleaning the grain, as iscommon in this class of machines.

The several carriers, thrashing cylinder, shoe, blast-fan, and therotary beater, also the delivery-reel, receive their motion by suitablebelts and pulleys in the ordinary manner.

The frame A is provided with. a dust-conveyer, M, of the usual form andconstruction.

Having now fully described my invention, what I claim as new, and desireto secure by Letters Patent, is-

1. In a combined thrasher and separator, the combination, with athrashing cylinder having zigzag peripheral ribs, of a concave formedwith transverse bent ribs arranged to 5 converge from the receiving edgetoward the middle of the concave and to diverge from the middle to therear edge, substantially as and for the purpose set forth.

2. A combined thrasher and separator com- TOO prising athrashing-cylinder formed with zighereunto subscribed my name in thepresence zag peripheral ribs, a concave formed with of two witnesses.transverse bent ribs, first converging and then diverging, as described,and a dust-conveyer JAMES D AVIS 5 and fan, substantially as and for thepurpose Witnesses:

specified. AMos REYNOLDS,

In testimony that I claim the above I have ISAAC N. MEEDER.

